ChangeLog:

2009-06-30  Paul Pluzhnikov  <ppluzhnikov@google.com>

	gdb/10275
	* dwarf2-frame.c (dwarf2_frame_state): Move cfa_offset, cfa_reg,
	cfa_how and cfa_exp into regs and adjust users.

testsuite/ChangeLog:

2009-06-30  Paul Pluzhnikov  <ppluzhnikov@google.com>

	gdb/10275
	* gdb.dwarf2/dw2-restore.{S,exp}: New test.

1 files changed, 35 insertions, 32 deletions

diff --git a/gdb/dwarf2-frame.c b/gdb/dwarf2-frame.c
index 67265f2d7ec..315d349cf49 100644
--- a/gdb/dwarf2-frame.c
+++ b/gdb/dwarf2-frame.c
@@ -164,19 +164,19 @@ struct dwarf2_frame_state
     struct dwarf2_frame_state_reg *reg;
     int num_regs;
 
+    LONGEST cfa_offset;
+    ULONGEST cfa_reg;
+    enum {
+      CFA_UNSET,
+      CFA_REG_OFFSET,
+      CFA_EXP
+    } cfa_how;
+    gdb_byte *cfa_exp;
+
     /* Used to implement DW_CFA_remember_state.  */
     struct dwarf2_frame_state_reg_info *prev;
   } regs;
 
-  LONGEST cfa_offset;
-  ULONGEST cfa_reg;
-  gdb_byte *cfa_exp;
-  enum {
-    CFA_UNSET,
-    CFA_REG_OFFSET,
-    CFA_EXP
-  } cfa_how;
-
   /* The PC described by the current frame state.  */
   CORE_ADDR pc;
 
@@ -502,21 +502,22 @@ bad CFI data; mismatched DW_CFA_restore_state at 0x%s"), paddr (fs->pc));
 	      break;
 
 	    case DW_CFA_def_cfa:
-	      insn_ptr = read_uleb128 (insn_ptr, insn_end, &fs->cfa_reg);
+	      insn_ptr = read_uleb128 (insn_ptr, insn_end, &fs->regs.cfa_reg);
 	      insn_ptr = read_uleb128 (insn_ptr, insn_end, &utmp);
 
 	      if (fs->armcc_cfa_offsets_sf)
 		utmp *= fs->data_align;
 
-	      fs->cfa_offset = utmp;
-	      fs->cfa_how = CFA_REG_OFFSET;
+	      fs->regs.cfa_offset = utmp;
+	      fs->regs.cfa_how = CFA_REG_OFFSET;
 	      break;
 
 	    case DW_CFA_def_cfa_register:
-	      insn_ptr = read_uleb128 (insn_ptr, insn_end, &fs->cfa_reg);
-	      fs->cfa_reg = dwarf2_frame_adjust_regnum (gdbarch, fs->cfa_reg,
-							eh_frame_p);
-	      fs->cfa_how = CFA_REG_OFFSET;
+	      insn_ptr = read_uleb128 (insn_ptr, insn_end, &fs->regs.cfa_reg);
+	      fs->regs.cfa_reg = dwarf2_frame_adjust_regnum (gdbarch,
+                                                             fs->regs.cfa_reg,
+                                                             eh_frame_p);
+	      fs->regs.cfa_how = CFA_REG_OFFSET;
 	      break;
 
 	    case DW_CFA_def_cfa_offset:
@@ -525,7 +526,7 @@ bad CFI data; mismatched DW_CFA_restore_state at 0x%s"), paddr (fs->pc));
 	      if (fs->armcc_cfa_offsets_sf)
 		utmp *= fs->data_align;
 
-	      fs->cfa_offset = utmp;
+	      fs->regs.cfa_offset = utmp;
 	      /* cfa_how deliberately not set.  */
 	      break;
 
@@ -533,10 +534,11 @@ bad CFI data; mismatched DW_CFA_restore_state at 0x%s"), paddr (fs->pc));
 	      break;
 
 	    case DW_CFA_def_cfa_expression:
-	      insn_ptr = read_uleb128 (insn_ptr, insn_end, &fs->cfa_exp_len);
-	      fs->cfa_exp = insn_ptr;
-	      fs->cfa_how = CFA_EXP;
-	      insn_ptr += fs->cfa_exp_len;
+	      insn_ptr = read_uleb128 (insn_ptr, insn_end,
+                                       &fs->regs.cfa_exp_len);
+	      fs->regs.cfa_exp = insn_ptr;
+	      fs->regs.cfa_how = CFA_EXP;
+	      insn_ptr += fs->regs.cfa_exp_len;
 	      break;
 
 	    case DW_CFA_expression:
@@ -589,17 +591,18 @@ bad CFI data; mismatched DW_CFA_restore_state at 0x%s"), paddr (fs->pc));
 	      break;
 
 	    case DW_CFA_def_cfa_sf:
-	      insn_ptr = read_uleb128 (insn_ptr, insn_end, &fs->cfa_reg);
-	      fs->cfa_reg = dwarf2_frame_adjust_regnum (gdbarch, fs->cfa_reg,
-							eh_frame_p);
+	      insn_ptr = read_uleb128 (insn_ptr, insn_end, &fs->regs.cfa_reg);
+	      fs->regs.cfa_reg = dwarf2_frame_adjust_regnum (gdbarch,
+                                                             fs->regs.cfa_reg,
+                                                             eh_frame_p);
 	      insn_ptr = read_sleb128 (insn_ptr, insn_end, &offset);
-	      fs->cfa_offset = offset * fs->data_align;
-	      fs->cfa_how = CFA_REG_OFFSET;
+	      fs->regs.cfa_offset = offset * fs->data_align;
+	      fs->regs.cfa_how = CFA_REG_OFFSET;
 	      break;
 
 	    case DW_CFA_def_cfa_offset_sf:
 	      insn_ptr = read_sleb128 (insn_ptr, insn_end, &offset);
-	      fs->cfa_offset = offset * fs->data_align;
+	      fs->regs.cfa_offset = offset * fs->data_align;
 	      /* cfa_how deliberately not set.  */
 	      break;
 
@@ -932,19 +935,19 @@ dwarf2_frame_cache (struct frame_info *this_frame, void **this_cache)
   execute_cfa_program (fde, fde->instructions, fde->end, this_frame, fs);
 
   /* Calculate the CFA.  */
-  switch (fs->cfa_how)
+  switch (fs->regs.cfa_how)
     {
     case CFA_REG_OFFSET:
-      cache->cfa = read_reg (this_frame, fs->cfa_reg);
+      cache->cfa = read_reg (this_frame, fs->regs.cfa_reg);
       if (fs->armcc_cfa_offsets_reversed)
-	cache->cfa -= fs->cfa_offset;
+	cache->cfa -= fs->regs.cfa_offset;
       else
-	cache->cfa += fs->cfa_offset;
+	cache->cfa += fs->regs.cfa_offset;
       break;
 
     case CFA_EXP:
       cache->cfa =
-	execute_stack_op (fs->cfa_exp, fs->cfa_exp_len,
+	execute_stack_op (fs->regs.cfa_exp, fs->regs.cfa_exp_len,
 			  cache->addr_size, this_frame, 0);
       break;